Breathwork for Stress: Physiological Sigh and Box Breathing

How to Do the Physiological Sigh (and Why It Calms You Fast)

The physiological sigh is a double inhale followed by a long exhale. It is one of the fastest ways to bring your stress down in the moment.

How to do it

  • Inhale deeply through the nose.
  • At the top, take a second, shorter inhale to fill the lungs fully.
  • Exhale slowly and fully through the mouth, longer than the inhales.
  • Repeat one to five times, or for up to five minutes.

What the research says

In a randomized study, participants who practiced five minutes a day of cyclic sighing reported greater improvements in mood and a larger drop in breathing rate than a mindfulness meditation comparison group. It is a single study, so treat the result as encouraging, not final.

When to use it

Before a tough conversation, when anger or anxiety is rising, or any time you notice your breathing is shallow. Stop if you feel dizzy.

Frequently asked questions

How many physiological sighs should I do?

One to three can shift how you feel. For a daily practice, aim for about five minutes.

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References

  1. Balban, M. Y., et al. (2023). Brief structured respiration practices enhance mood and reduce physiological arousal. Cell Reports Medicine, 4(1), 100895.

This article is educational and not medical advice. Meditation does not replace professional care.